Annular Ring Shank Nails are ideal for where strength and holding power are of primary importance. The rings on the shank of the nail are sloped in a conical shape to ensure clean insertion but are thenextremely difficult to release. They are suitable for both soft and hard wood. The nails have a 'Bright' finish, which is simply the basic raw mild steel material, without any coating or finish. APPLICATION:Used where permanent holding is preferred such as flooring applications.